| Citation: | ZHU H,LIU X J,ZHONG J S,et al.Effect analysis on hydraulic pulping coupled with anaerobic digestion of food wastes[J].Journal of Environmental Engineering Technology，2024，14（1）：216-223 doi: 10.12153/j.issn.1674-991X.20230246
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Considering the characteristics of the high water content of food wastes, the hydraulic pulping pretreatment technology was comprehensively evaluated from the aspects of hydraulic simulation, characteristics of pulp, key equipment operation indicators and project operation effect. The CFD (computational fluid dynamics) hydraulic simulation results showed that during the pulping process, the fluid particles spirally converged to the rotor blades to form three internal swirling eddies, which produced obvious velocity and pressure differences in the fluid interior. Under the hydraulic action, the pulping of food wastes could be performed quickly. The analysis of pulp and impurity characteristics showed that the pulping product was of fine particles, with low organic matter loss and high impurity removal, which could be highly integrated with different back-end resource utilization technologies (anaerobic digestion, aerobic fermentation, etc.). Taking the resource utilization project of food waste as an example, which adopted hydraulic pulping and anaerobic fermentation technologies, the relevant operation data showed that after the pretreatment of food wastes by hydraulic pulping, the loss rate of organic matter was about 8.5%, the separation rate of non-biodegradable impurities was about 94%, and the extraction rate of crude oil was about 91%. Moreover, the average oil production rate per ton of food waste was 3.76%, and the gas production rate per ton of food waste was 85.57 m3. The treatment method had a higher resource utilization rate compared to mechanical pre-treatment, which could greatly improve the economic benefits of the project.
| [1] |
刘有胜, 杨朝晖, 曾光明, 等. PCR-DGGE技术对城市餐厨垃圾堆肥中细菌种群结构分析[J]. 环境科学学报,2007,27(7):1151-1156.
LIU Y S, YANG C H, ZENG G M, et al. Application of PCR-DGGE to analyzing bacterial communities in culinary waste compost[J]. Journal of Environmental Sciences,2007,27(7):1151-1156.
|
| [2] |
邓俊. 餐厨垃圾无害化处理与资源化利用现状及发展趋势[J]. 环境工程技术学报,2019,9(6):637-642. doi: doi:10.12153/j.issn.1674-991X.2019.05.300
DENG J. Harmless treatment and resource utilization of kitchen waste: development status and trend[J]. Journal of Environmental Engineering Technology,2019,9(6):637-642. doi: doi:10.12153/j.issn.1674-991X.2019.05.300
|
| [3] |
王凯军, 王婧瑶, 左剑恶, 等. 我国餐厨垃圾厌氧处理技术现状分析及建议[J]. 环境工程学报,2020,14(7):1735-1742.
WANG K J, WANG J Y, ZUO J E, et al. Analysis and suggestion of current food waste anaerobic digestion technology in China[J]. Chinese Journal of Environmental Engineering,2020,14(7):1735-1742.
|
| [4] |
邴君妍, 罗恩华, 金宜英, 等. 中国餐厨垃圾资源化利用系统建设现状研究[J]. 环境科学与管理,2018,43(4):39-43.
BING J Y, LUO E H, JIN Y Y, et al. Current situation of food waste recycling in China[J]. Environmental Science and Management,2018,43(4):39-43.
|
| [5] |
徐振, 王国城, 罗小荣, 等. 协同模式下餐厨垃圾的资源化处理探究[J]. 再生资源与循环经济,2022,15(9):32-35.
XU Z, WANG G C, LUO X R, et al. Research on the resource treatment of food waste under collaborative mode[J]. Recycling Research,2022,15(9):32-35.
|
| [6] |
谭业琴, 俞钟陆, 魏孔忠. “双碳” 背景下中国餐厨垃圾处理现状及趋势[J]. 能源与节能,2022(4):63-65.
TAN Y Q, YU Z L, WEI K Z. Current situation and trend of kitchen waste treatment in China under "dual carbon" background[J]. Energy and Conservation,2022(4):63-65.
|
| [7] |
郝晓地, 周鹏, 曹达啓. 餐厨垃圾处置方式及其碳排放分析[J]. 环境工程学报,2017,11(2):673-682.
HAO X D, ZHOU P, CAO D Q. Analyses of disposal methods and carbon emissions of food wastes[J]. Chinese Journal of Environmental Engineering,2017,11(2):673-682.
|
| [8] |
LI Y Y, JIN Y Y, BORRION A, et al. Current status of food waste generation and management in China[J]. Bioresource Technology,2019,273:654-665. doi: 10.1016/j.biortech.2018.10.083
|
| [9] |
呼佳宁, 林子吟, 费波. 餐厨垃圾生化处理机工艺恶臭污染特征研究[J]. 环境工程技术学报,2023,13(1):340-347.
HU J N, LIN Z Y, FEI B. Study of odor pollution characteristics of bio-chemical processor treatment of kitchen waste[J]. Journal of Environmental Engineering Technology,2023,13(1):340-347.
|
| [10] |
童胜宝, 刘文刚, 王智. 餐厨垃圾预处理工艺研究及现场应用[J]. 四川环境,2021,40(1):233-238.
TONG S B, LIU W G, WANG Z. Study and field application of kitchen waste pretreatment technology[J]. Sichuan Environment,2021,40(1):233-238.
|
| [11] |
卢璐, 郭婷, 韩璐, 等. 餐厨垃圾预处理+厌氧消化工艺技术实践[C]//2019年科学技术年会: 环境工程技术创新与应用分论坛论文集(三). 北京: 中国环境科学学会, 2019: 541-543.
|
| [12] |
李梦雅, 张春环, 岳凤明, 等. 餐厨垃圾高温湿解提油系统工艺应用研究[C]//2022年科学技术年会: 环境工程技术创新与应用分会场论文集(一). 北京: 中国环境科学学会, 2022: 313-317.
|
| [13] |
邢巨元, 祝金星, 张晨光, 等. 挤压预处理对餐厨垃圾厌氧消化的影响[J]. 中国沼气,2014,32(4):8-11.
XING J Y, ZHU J X, ZHANG C G, et al. Extrusion pretreatment of kitchen waste for anaerobic digestion[J]. China Biogas,2014,32(4):8-11.
|
| [14] |
史东晓, 汤晓艳, 陆祥昕, 等. 餐厨垃圾有机残渣资源化利用方式比较研究: 以常州市餐厨废弃物综合处置项目(一期)为例[J]. 环境卫生工程,2022,30(5):55-59.
SHI D X, TANG X Y, LU X X, et al. Comparative study on resource utilization of organic residues from kitchen waste: a case study of kitchen waste comprehensive disposal project (phaseⅠ) in Changzhou[J]. Environmental Sanitation Engineering,2022,30(5):55-59.
|
| [15] |
王瑞金, 张凯, 王刚. Fluent技术基础与应用实例[M]. 北京: 清华大学出版社, 2007: 33-40.
|
| [16] |
王建龙, 秦美娜, 黄涛, 等. 基于CFD的雨水调蓄池颗粒物沉淀特性研究[J]. 环境工程,2021,39(12):44-50.
WANG J L, QIN M N, HUANG T, et al. Sedimentation characteristics of particulate matters in runoff detention tank via CFD method[J]. Environmental Engineering,2021,39(12):44-50.
|
| [17] |
刘伟. 基于 k- ε湍流模型的方锥管布浆器的流动特性[J]. 中华纸业,2013,34(8):30-33. doi: 10.3969/j.issn.1007-9211.2013.08.009
LIU W. Flow characteristics of rectangularly tapered distributor based on k- ε turbulence model[J]. China Pulp & Paper Industry,2013,34(8):30-33. doi: 10.3969/j.issn.1007-9211.2013.08.009
|
| [18] |
熊荣军. 塑料轻质砂的颗粒分析方法[J]. 水运工程,2019(1):25-28.
XIONG R J. Particle size analysis method of plastic light model sediment[J]. Port & Waterway Engineering,2019(1):25-28.
|
| [19] |
李胜利, 崔鹏, 罗海斌. 激光衍射法和机械筛分法测定PVC树脂粒径分布的对比[J]. 聚氯乙烯,2020,48(9):28-30.
LI S L, CUI P, LUO H B. Comparison between laser diffraction and mechanical screening for determination of particle size distribution of PVC resin[J]. Polyvinyl Chloride,2020,48(9):28-30.
|
| [20] |
曹猛. 餐厨垃圾处理厂预处理工艺应用分析[J]. 中国资源综合利用,2022,40(9):29-32.
CAO M. Application analysis of pretreatment process in kitchen waste treatment plant[J]. China Resources Comprehensive Utilization,2022,40(9):29-32.
|
| [21] |
靖丹枫, 耿震, 程文, 等. 餐厨垃圾预处理工艺设计[J]. 市政技术,2020,38(5):254-257.
JING D F, GENG Z, CHENG W, et al. Pretreatment process design of kitchen waste[J]. Municipal Engineering Technology,2020,38(5):254-257.
|
| [22] |
WEN Z G, WANG Y J, de CLERCQ D. What is the true value of food waste: a case study of technology integration in urban food waste treatment in Suzhou City, China[J]. Journal of Cleaner Production,2016,118:88-96. ⊗ doi: 10.1016/j.jclepro.2015.12.087
|
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